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Byju's Answer
Standard XII
Chemistry
Potassium Permanganate
Which of the ...
Question
Which of the following reactions are disproportionation reactions?
A
2
M
n
O
4
−
+
3
M
n
2
+
+
2
H
2
O
⟶
5
M
n
O
2
+
4
H
+
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B
2
K
M
n
O
4
⟶
K
2
M
n
O
4
+
M
n
O
2
+
O
2
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C
3
M
n
O
4
2
−
+
4
H
+
⟶
2
M
n
O
4
−
+
M
n
O
2
+
2
H
2
O
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D
C
u
+
⟶
C
u
+
2
+
C
u
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Solution
The correct options are
C
3
M
n
O
4
2
−
+
4
H
+
⟶
2
M
n
O
4
−
+
M
n
O
2
+
2
H
2
O
D
C
u
+
⟶
C
u
+
2
+
C
u
Disproportionation is a type of redox reaction in which a single species undergoes both oxidation and reduction.
Oxidation State: +1 +2 0
Reaction:
C
u
+
⟶
C
u
+
2
+
C
u
+6 +2 +4
3
M
n
O
4
−
+
4
H
+
⟶
2
M
n
O
4
−
+
M
n
O
2
+
2
H
2
O
Suggest Corrections
21
Similar questions
Q.
Which of the following reactions are disproportionation reactions?
a)
2
C
u
+
→
C
u
2
+
+
C
u
0
b)
3
M
n
O
2
−
4
+
4
H
+
→
2
M
n
O
−
4
+
M
n
O
2
+
2
H
2
O
c)
2
K
M
n
O
4
△
−
→
K
2
M
n
O
4
+
M
n
O
2
+
O
2
d)
2
M
n
O
−
4
+
3
M
n
2
+
+
2
H
2
O
⟶
5
M
n
O
2
+
4
H
+
Q.
Which of the following reactions are disproportion reactions?
(a)
C
u
+
→
C
u
2
+
+
C
u
(b)
3
M
n
O
−
2
4
+
4
H
+
→
2
M
n
O
−
4
+
M
n
O
2
+
2
H
2
O
(c)
2
K
M
n
O
4
→
K
2
M
n
O
4
+
M
n
O
2
+
O
2
(d)
2
M
n
O
−
4
+
3
M
n
+
2
+
2
H
2
O
→
5
M
n
O
2
+
4
H
+
Q.
Which of the following reactions are disproportionation reactions?
(I)
C
u
+
→
C
u
2
+
+
C
u
(II)
3
M
n
O
4
−
+
4
H
+
→
2
M
n
O
−
4
+
M
n
O
2
+
2
H
2
O
(III)
2
K
M
n
O
4
→
K
2
M
n
O
4
+
M
n
O
2
+
O
2
(IV)
2
M
n
O
4
−
+
3
M
n
2
+
+
2
H
2
O
→
5
M
n
O
2
+
4
H
+
Q.
Which of the following reactions is disproportionation reaction ?
(
a
)
2
C
u
+
→
C
u
2
+
+
C
u
(
b
)
3
M
n
O
2
−
4
+
4
H
+
→
2
M
n
O
−
4
+
M
n
O
2
+
2
H
2
O
(
c
)
2
K
M
n
O
4
→
K
2
M
n
O
4
+
M
n
O
2
+
O
2
(
d
)
2
M
n
O
−
4
+
3
M
n
2
+
+
2
H
2
O
→
5
M
n
O
2
+
4
H
+
Select the correct option from the following:
Q.
Which of the following reactions are disproportionation reactions?
a)
2
C
u
+
→
C
u
2
+
+
C
u
0
b)
3
M
n
O
2
−
4
+
4
H
+
→
2
M
n
O
−
4
+
M
n
O
2
+
2
H
2
O
c)
2
K
M
n
O
4
△
−
→
K
2
M
n
O
4
+
M
n
O
2
+
O
2
d)
2
M
n
O
−
4
+
3
M
n
2
+
+
2
H
2
O
⟶
5
M
n
O
2
+
4
H
+
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